Sakid
I will never open any more support tickets because I was just wasting my time, on phone calls and writing emails. The problem is not solved and has existed since the beginning of ePMP.
For the tenth time on the forum I am asking you from Cambium to stop doubting the GPS pack antennas.
The same antennas are used by Ubiguiti, Mimosa and others.
He does it there constantly.
Two GPS antennas next to each other are also pointed. One uses a Cambium that crashes several times a year and drives me crazy. The second is used by Ubiquiti, on which the GPS has been working since the day of installation without incident. Without any movement of the packs, I just replace the places with SMA connectors. Ubiquti continued the following year with steady GPS sync while Cambium crashed as before.
They all use the same ceramic resonator as the antenna, the same radio chip, the same coaxial cable.
It’s just an active GPS antenna for which firmware is written and that’s it.
Sakid you say you never made it to one tower to see how we install it at all.
Luckily for you and unfortunately for us, there are people like me who have to do it even when they shouldn’t, so I invite you to go out to the tower with me.
It is terribly difficult to just approach the tower, let alone climb against the strong wind.
I think that after several such visits to the tower, the development team in Cambium would take them hostage and threaten them that there would be no salary or food until this is resolved.
The accompanying problem on the topics of GPS sync outages was not only the one who did not use it.
I think it’s high time to sort this out. You said you care about big and small customers like you said. It’s a huge investment for me to invest in a few more PacketFlux or similar devices. and I have already given all the money to Cambium for her (in my country it is so). I am on the verge of bankruptcy and that in order to buy more of these accessories I should sell my wife’s gold jewelry which she inherited but she does not accept it.
You have also introduced yourself as a leading company in this field, so it should be but …
GPS sync with a pack antenna should work, ok sometimes it can theoretically crash, although the probability is that there will be none.
Gps and frequency were chosen by more experts than us with the reason where the impact of the atmosphere is minimal. There should be so much water in the atmosphere that the signal is very weak. This can rarely happen but let it happen.
It can never last longer than two hours in any part of the world because physically there can’t be that much water in the atmosphere. Maintaining sync for two hours is fine and bearable but should come back as soon as the SNR is 6 dB with 3 or 4 satellite which is enough.
Why do you need over 20 or 30 dB and a huge number of satellites?
A little more about your GPS problem solving.
Your developers have set up maintenance on the old firmware version 86400 with or 1 day and later on 864000 or 10 days.
That was the last time I contacted your technical support regarding GPS sync. Said problem fixed, boot new firmware and set maximum sync retention time.
If I had a gun I would have shot myself in the leg when I saw 864,000 seconds. After 1 day the oscillator can slide in 200-400 ms.
What then is the frame size of 2.5 and 5 ms, who is crazy here. Every electronics engineer should know that.
The programmer should not know that, but he should consult with the one who knows.
Why do I see this as a problem? Because frequency repetition is useless! After two hours without GPS sync if the APs are with many clients and use IPTV and other stream applications.
How come the engineers and developers at Cambium don’t see it.
Have they ever simulated a situation like this and got chills when they see how it all stops working.
And luckily for them they are never called by some angry user and they don’t swear, threaten or refuse to pay for the service.
As you can see Sakid it is my torment and the torment of many more on the forum we are trying to make a living from WI-FI ISP or network services.
Please be honest and answer which of these two questions of mine is correct?
1.Cambium engineers and developers are not able to solve the problem with GPS.
2.Cambium’s policy is not to want to solve the problem in order to take more money for the accompanying equipment.
Greeting